On the efficiency of organic light emitting diodes

Alexander L. Burin, Mark A Ratner

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

We have studied the quantum efficiency of multilayer organic light emitting diodes (OLEDs). Attention is focused on the recombination efficiency and exciton quenching, controlling the performance of highly efficient OLEDs having Alq(3) (Al(III) 8-hydroxyquinoline) as the emissive layer. The kinetics model of Ref. [1] is extended to account for the image charge effect on the injection and the narrow bandwidths of carriers. An analytical criterion for maximum recombination efficiency at low voltages is found. The analysis of current voltage dependence and quantum efficiency is performed for Al/LiF/Alq(3)/TPD/ITO devices with or without an ultrathin dielectric layer LiF, taking into account the exciton quenching controlled by the boundary Al-Alq(3). We get a reasonable fit for the experimental data and discuss the optimum modifications required to enhance the device performance.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages142-143
Number of pages2
Volume3749
Publication statusPublished - 1999
EventProceedings of the 1999 18th Congress of the International Commission for Optics (ICO XVIII): Optics for the Next Millennium - San Francisco, CA, USA
Duration: Aug 2 1999Aug 6 1999

Other

OtherProceedings of the 1999 18th Congress of the International Commission for Optics (ICO XVIII): Optics for the Next Millennium
CitySan Francisco, CA, USA
Period8/2/998/6/99

Fingerprint

Organic light emitting diodes (OLED)
Quantum efficiency
Excitons
Quenching
light emitting diodes
quantum efficiency
Electric potential
Temperature programmed desorption
quenching
excitons
Multilayers
ITO (semiconductors)
Bandwidth
low voltage
Kinetics
injection
bandwidth
kinetics
electric potential

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Burin, A. L., & Ratner, M. A. (1999). On the efficiency of organic light emitting diodes. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 3749, pp. 142-143). Society of Photo-Optical Instrumentation Engineers.

On the efficiency of organic light emitting diodes. / Burin, Alexander L.; Ratner, Mark A.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3749 Society of Photo-Optical Instrumentation Engineers, 1999. p. 142-143.

Research output: Chapter in Book/Report/Conference proceedingChapter

Burin, AL & Ratner, MA 1999, On the efficiency of organic light emitting diodes. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 3749, Society of Photo-Optical Instrumentation Engineers, pp. 142-143, Proceedings of the 1999 18th Congress of the International Commission for Optics (ICO XVIII): Optics for the Next Millennium, San Francisco, CA, USA, 8/2/99.
Burin AL, Ratner MA. On the efficiency of organic light emitting diodes. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3749. Society of Photo-Optical Instrumentation Engineers. 1999. p. 142-143
Burin, Alexander L. ; Ratner, Mark A. / On the efficiency of organic light emitting diodes. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3749 Society of Photo-Optical Instrumentation Engineers, 1999. pp. 142-143
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